The goal of this unit is to increase elementary students' understanding of water, water management, and water-related issues. Topics included in the guide are conceptual framework, the learning cycle, and tips about classroom management and cooperative learning. In Chapters 1-4, 63 student lessons are included that cover topics such as the physical and chemical properties of water, the hydrologic cycle, and the dependence of all living things on water. The student activities help students develop a scientific attitude and begin to learn cause and effect relationships, increase their natural curiosity, suspend judgment and develop a desire to search for answers. Chapter 5 contains many fun game activities with an environmental focus. Chapter 6 presents a discussion of field methods and equipment. Contains 45 references. (DDR)